Database reorganize, protocol version bump, migrations

.gitignore

@@ -45,7 +45,10 @@ bin/
 .DS_Store
 
 *.db
+*.bak*
 .env
+.env.*
+*.sql
 .idea/
 artifacts/
 

build.gradle.kts

@@ -1,3 +1,5 @@
+import PhoebenchVersion
+
 plugins {
   alias(libs.plugins.composeMultiplatform) apply false
   alias(libs.plugins.composeCompiler) apply false
@@ -12,4 +14,4 @@ repositories {
   mavenCentral()
 }
 
-version = "1.0.0"
+version = PhoebenchVersion(1, 1, 0, "")

buildSrc/build.gradle.kts

@@ -0,0 +1,7 @@
+plugins {
+    `kotlin-dsl`
+}
+
+repositories {
+    mavenCentral()
+}

buildSrc/src/main/kotlin/PhoebenchVersion.kt

@@ -0,0 +1,14 @@
+data class PhoebenchVersion(val major: Int, val minor: Int, val patch: Int, val note: String = "") {
+    operator fun compareTo(other: PhoebenchVersion): Int {
+        // this > other -> return >0
+        val majorComp = major - other.major
+        if(majorComp != 0) return majorComp
+        val minorComp = minor - other.minor
+        if(minorComp != 0) return minorComp
+        return patch - other.patch
+    }
+
+    override fun toString(): String = if(note.isNotBlank()) "$major.$minor.$patch-$note" else safeString()
+
+    fun safeString() = "$major.$minor.$patch"
+}

clients/cli/build.gradle.kts

@@ -8,7 +8,10 @@ plugins {
 }
 
 group = "com.jaytux.phoebench"
-version = "1.0.1"
+version = rootProject.version as PhoebenchVersion
+
+if((version as PhoebenchVersion) < (rootProject.version as PhoebenchVersion))
+    throw GradleException("CLI Client version must be at least as high as protocol/common version")
 
 val versionDirectory = layout.buildDirectory.dir("generated/sources/version")
 val generateVersion = tasks.register<Task>("serverVersion") {

clients/cli/src/main/kotlin/com/jaytux/phoebench/clients/cli/CLI.kt

@@ -101,10 +101,11 @@ object CLI {
             override fun nestedCommands(): Array<CliktCommand> = fromReflection()
 
             sealed interface IProjectIdentification
-            sealed interface ILabelIdentification
+            sealed interface IVersionIdentification
+            sealed interface IBenchmarkIdentification
             data class ProjectName(val user: String, val project: String) : IProjectIdentification
-            data class VersionName(val name: String): ILabelIdentification
-            data class ID(val id: Uuid) : IProjectIdentification, ILabelIdentification
+            data class Name(val name: String): IVersionIdentification, IBenchmarkIdentification
+            data class ID(val id: Uuid) : IProjectIdentification, IVersionIdentification, IBenchmarkIdentification
 
             sealed interface IData<T> {
                 fun toList(): List<T>
@@ -184,12 +185,24 @@ object CLI {
                 override fun run() = ProjectHandlers.newVersion(name, color, parent.finder, meta)
             }
 
+            @Suppress("unused")
+            class AddBenchmark : CliktCommand(name = "add-benchmark") {
+                val parent by requireObject<Project>()
+                val name by option("--name", help = "Set the version's name (*)")
+
+                override fun run() = ProjectHandlers.newBenchmark(name, parent.finder)
+            }
+
             @Suppress("unused")
             class AddData : CliktCommand(name = "add-data") {
                 val parent by requireObject<Project>()
-                val version by mutuallyExclusiveOptions<ILabelIdentification>(
+                val version by mutuallyExclusiveOptions<IVersionIdentification>(
                 option("--version-id", help = "Set the version by UUID.").convert { ID(Uuid.parse(it)) },
-                option("--version", help = "Set the version by name.").convert { VersionName(it) }
+                option("--version", help = "Set the version by name.").convert { Name(it) }
+                ).single()
+                val benchmark by mutuallyExclusiveOptions<IBenchmarkIdentification>(
+                option("--benchmark-id", "--bench-id", help = "Set the benchmark by UUID.").convert { ID(Uuid.parse(it)) },
+                option("--benchmark", "--bench", help = "Set the benchmark by name.").convert { Name(it) }
                 ).single()
                 val warmup by mutuallyExclusiveOptions<IData<Float>>(
                     option("--warmup", help = "Set warmup data directly.").float().split(",").transformAll { DirectData(it.flatten()) },
@@ -210,7 +223,7 @@ object CLI {
                 val input by option("--input", help = "Set the input used to benchmark")
                 val hardware by option("--hardware", "--hw", help = "Set the hardware on which the benchmark was run")
 
-                override fun run() = ProjectHandlers.newData(parent.finder, version, warmup, measurement, unit, input, hardware)
+                override fun run() = ProjectHandlers.newData(parent.finder, benchmark, version, warmup, measurement, unit, input, hardware)
             }
         }
 

clients/cli/src/main/kotlin/com/jaytux/phoebench/clients/cli/ProjectHandlers.kt

@@ -1,6 +1,7 @@
 package com.jaytux.phoebench.clients.cli
 
 import com.jaytux.phoebench.clients.cli.CLI.Commands.Project.ProjectName
+import com.jaytux.phoebench.common.BenchmarkRequest
 import com.jaytux.phoebench.common.Either
 import com.jaytux.phoebench.common.EmptyRequest
 import com.jaytux.phoebench.common.EntryRequest
@@ -29,6 +30,7 @@ object ProjectHandlers {
             Client.callRoute(Routes.home, EmptyRequest())
         }.fold({ err ->
             System.err.println("Could not get projects list: ${err.msg}")
+            exitProcess(-1)
         }) {
             System.err.println("Logged in as ${it.username}")
             (it.ownProjects + it.publicProjects).toSet().sortedBy { p -> p.name }.forEach { project ->
@@ -65,21 +67,25 @@ object ProjectHandlers {
             }
         }.fold({
             System.err.println("Failed to get project details: ${it.msg}")
+            exitProcess(-1)
         }) {
             println("Project ${it.owner.name}/${it.name} [${it.id}]:")
-            println("${it.usedLabels.size} versions:")
-            it.usedLabels.forEach { v ->
+            println("${it.versions.size} versions:")
+            it.versions.forEach { v ->
                 println("  - [${v.id}] VERSION ${v.name} (with color ${v.color}); metadata: ${v.meta}")
             }
-            val map = it.usedLabels.associateBy { l -> l.id }
+            val map = it.versions.associateBy { l -> l.id }
 
-            println("\n${it.entries.size} entries:")
-            it.entries.forEach { e ->
-                println("  - [${e.id}] ENTRY versioned ${map[e.labelId]?.name ?: "<invalid version>"} at ${e.timestamp.fmt()} " +
+            println("\n${it.benchmarks.size} benchmarks:")
+            it.benchmarks.forEach { b ->
+                println("  - [${b.id}] ${b.name} with ${b.entries.size} entries:")
+                b.entries.forEach { e ->
+                    println("  - [${e.id}] ENTRY versioned ${map[e.versionId]?.name ?: "<invalid version>"} at ${e.timestamp.fmt()} " +
                             "(${e.warmups.size} warmup data points, ${e.measurements.size} measurement data points; in ${e.unit.disp})")
                 }
             }
         }
+    }
 
     fun create(name: String?, isPublic: Boolean) {
         val useName = name.maybePrompt("project name") { it }
@@ -87,6 +93,7 @@ object ProjectHandlers {
             Client.callRoute(Routes.Project.new, ProjectRequest(useName, isPublic))
         }.fold({
             System.err.println("Failed to create project '$useName': ${it.msg}")
+            exitProcess(-1)
         }) {
             println("Project ${it.owner.name}/${it.name} [${it.id}] created.")
         }
@@ -111,8 +118,25 @@ object ProjectHandlers {
             }
         }.fold({
             System.err.println("Could not create version: ${it.msg}")
+            exitProcess(-1)
         }) {
-            println("Label ${it.name} (${it.color}) [${it.id}] created.")
+            println("Version ${it.name} (${it.color}) [${it.id}] created.")
+        }
+    }
+
+    fun newBenchmark(name: String?, project: CLI.Commands.Project.IProjectIdentification?) {
+        val id = ensureProjectIdentification(project)
+        val useName = name.maybePrompt("version name") { it }
+
+        tryAuthenticated {
+            id.toId().bind { projectId ->
+                Client.callRoute(Routes.Benchmark.new, BenchmarkRequest(useName, projectId))
+            }
+        }.fold({
+            System.err.println("Could not create benchmark: ${it.msg}")
+            exitProcess(-1)
+        }) {
+            println("Benchmark ${it.name} [${it.id}] created.")
         }
     }
 
@@ -129,14 +153,18 @@ object ProjectHandlers {
 
     fun newData(
         project: CLI.Commands.Project.IProjectIdentification?,
-        label: CLI.Commands.Project.ILabelIdentification?,
+        benchmark: CLI.Commands.Project.IBenchmarkIdentification?,
+        label: CLI.Commands.Project.IVersionIdentification?,
         warmup: CLI.Commands.Project.IData<Float>?,
         measurement: CLI.Commands.Project.IData<Float>?,
         unit: TimeUnit?, input: String?, hardware: String?
     ) {
         val projectId = ensureProjectIdentification(project)
         val versionId = label.maybePrompt("version name") {
-            CLI.Commands.Project.VersionName(it)
+            CLI.Commands.Project.Name(it)
+        }
+        val benchmarkId = benchmark.maybePrompt("benchmark name") {
+            CLI.Commands.Project.Name(it)
         }
         val warmupData = warmup.ensure("warmup").toList()
         val measureData = measurement.ensure("measurements").toList()
@@ -160,19 +188,30 @@ object ProjectHandlers {
 
         tryAuthenticated {
             projectId.toId().bind { pId ->
-                when(versionId) {
+                Client.callRoute(Routes.Project.get, pId).bind { p ->
+                    when (versionId) {
                         is CLI.Commands.Project.ID -> versionId.id.value()
-                    is CLI.Commands.Project.VersionName -> Client.callRoute(Routes.Project.get, pId).bind {
-                        it.usedLabels.firstOrNull { l -> l.name == versionId.name }?.id?.value()
+                        is CLI.Commands.Project.Name -> p.versions.firstOrNull { l -> l.name == versionId.name }?.id?.value()
                                 ?: ErrorResponse("Version ${versionId.name} does not exist in this project.").error()
+                    }.bind { vId ->
+                        when (benchmarkId) {
+                            is CLI.Commands.Project.ID -> benchmarkId.id.value()
+                            is CLI.Commands.Project.Name -> p.benchmarks.firstOrNull { b -> b.name == benchmarkId.name }?.id?.value()
+                                    ?: ErrorResponse("Benchmark ${benchmarkId.name} does not exist in this project.").error()
+                        }.map { it to vId }
                     }
-                }.map { pId to it }
-            }.bind { (pId, vId) ->
+                }
+            }.bind { (bId, vId) ->
                 Client.callRoute(Routes.Entry.new, EntryRequest(
-                    vId, Clock.System.now(), pId,
+                    vId, Clock.System.now(), bId,
                     warmupData, measureData, timeUnit, useInput, useHardware
                 ))
             }
+        }.fold({
+            System.err.println("Failed to add data: ${it.msg}")
+            exitProcess(-1)
+        }) {
+            println("Data added successfully.")
         }
     }
 }

clients/compose/build.gradle.kts

@@ -13,7 +13,10 @@ plugins {
     alias(libs.plugins.buildconfig)
 }
 
-version = "1.0.1"
+version = rootProject.version as PhoebenchVersion
+
+if((version as PhoebenchVersion) < (rootProject.version as PhoebenchVersion))
+    throw GradleException("UI Clients version must be at least as high as protocol/common version")
 val versionDirectory = layout.buildDirectory.dir("generated/sources/version")
 
 val generateVersion = tasks.register<Task>("clientVersion") {
@@ -128,7 +131,7 @@ compose.desktop {
         nativeDistributions {
             targetFormats(TargetFormat.Dmg, TargetFormat.Msi, TargetFormat.Deb)
             packageName = "com.jaytux.phoebench.clients"
-            packageVersion = version.toString()
+            packageVersion = (version as PhoebenchVersion).safeString()
 
             jvmArgs += listOf("--enable-native-access=ALL-UNNAMED")
             includeAllModules = true

clients/compose/src/commonMain/kotlin/com/jaytux/phoebench/clients/PlatformAPI.kt

@@ -1,9 +1,13 @@
 package com.jaytux.phoebench.clients
 
 import androidx.compose.runtime.Composable
+import androidx.compose.ui.draganddrop.DragAndDropEvent
+import androidx.compose.ui.draganddrop.DragAndDropTransferData
 import androidx.compose.ui.platform.ClipEntry
 import io.ktor.client.HttpClient
 import io.ktor.client.HttpClientConfig
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.serializer
 import kotlin.uuid.Uuid
 
 interface IStore {
@@ -27,3 +31,11 @@ expect fun format(f: Float): String
 
 @Composable
 expect fun ServerSelect(server: String, onUpdate: (String) -> Unit)
+
+inline fun <reified T> drag(data: T) = drag(data, serializer<T>())
+
+expect fun <T> drag(data: T, serializer: KSerializer<T>): DragAndDropTransferData
+
+inline fun <reified T> drop(data: DragAndDropEvent): T? = drop(data, serializer<T>())
+
+expect fun <T> drop(data: DragAndDropEvent, serializer: KSerializer<T>): T?

clients/compose/src/commonMain/kotlin/com/jaytux/phoebench/clients/Util.kt

@@ -85,8 +85,21 @@ inline fun <T, X : Comparable<X>> List<T>.insort(elem: T, crossinline sortBy: (T
     return toMutableList().apply { add(index, elem) }
 }
 
-fun List<Float>.geomean(): Float {
-    return (size.toFloat() / sumOf { 1.0 / it.toDouble() }).toFloat()
+inline fun <T, X : Comparable<X>> List<T>.insortIdx(elem: T, crossinline sortBy: (T) -> X): Pair<List<T>, Int?> {
+    val insertionPoint = binarySearchBy(sortBy(elem), selector = sortBy)
+    if(insertionPoint >= 0) return this to null
+    val index = -insertionPoint - 1
+
+    return toMutableList().apply { add(index, elem) } to index
+}
+
+inline fun <T> List<T>.replace(crossinline finder: (T) -> Boolean, crossinline update: (T) -> T): List<T> {
+    val idx = indexOfFirst { finder(it) }
+    if(idx == -1) return this
+
+    val res = ArrayList(this)
+    res[idx] = update(res[idx])
+    return res
 }
 
 infix fun <T1, T2, T3> Pair<T1, T2>.app(t3: T3) = Triple(first, second, t3)
@@ -123,3 +136,5 @@ fun <T1, T2, T3, T4> List<Tuple4<T1, T2, T3, T4>>.unzip(): Tuple4<List<T1>, List
 
     return l1 to l2 app l3 app l4
 }
+
+fun <T> List<T>.removeAt(idx: Int): List<T> = subList(0, idx) + subList(idx + 1, size)

clients/compose/src/commonMain/kotlin/com/jaytux/phoebench/clients/data/HomeVM.kt

@@ -17,6 +17,7 @@ import com.jaytux.phoebench.common.Either
 import com.jaytux.phoebench.common.HomeEvent
 import com.jaytux.phoebench.common.HomeResponse
 import com.jaytux.phoebench.common.InviteListResponse
+import com.jaytux.phoebench.common.Migrate0To1Request
 import com.jaytux.phoebench.common.Routes
 import com.jaytux.phoebench.common.UserListResponse
 import com.jaytux.phoebench.common.value
@@ -40,11 +41,14 @@ class HomeVM(
     private val _users = mutableStateOf(listOf<UserListResponse.UserData>())
     private val _invites = mutableStateOf(listOf<InviteListResponse.Invite>())
 
+    private val _stepsNeeded = mutableStateOf(listOf<HomeResponse.NeededMigration>())
+
     val username = _username.immutable()
     val isAdmin = _isAdmin.immutable()
     val projectLimit = _projectLimit.immutable()
     val ownProjects = _ownProjects.immutable()
     val publicProjects = _publicProjects.immutable()
+    val stepsNeeded = _stepsNeeded.immutable()
 
     val invites = _invites.immutable()
     val users = _users.immutable()
@@ -81,16 +85,21 @@ class HomeVM(
         withScope {
             resetAdmin()
             _repo.getHome().snackOr {
+                refreshFrom(it)
+            }
+        }
+    }
+
+    private suspend fun refreshFrom(it: HomeResponse) {
         println("Received home response $it")
         _username.value = it.username
         _isAdmin.value = it.isAdmin
         _projectLimit.value = it.projectLimit
         _ownProjects.value = it.ownProjects.sortedBy { p -> p.name }
         _publicProjects.value = it.publicProjects.sortedBy { p -> p.name }
+        _stepsNeeded.value = it.neededMigrations
         refreshAdmin()
     }
-        }
-    }
 
     fun refreshAdmin() {
         if(_isAdmin.value) {
@@ -212,4 +221,12 @@ class HomeVM(
             }
         }
     }
+
+    fun migrate(v0to1: List<Migrate0To1Request.MigrateProject>) {
+        withScope {
+            _repo.migrate0To1(v0to1).snackOr {
+                refreshFrom(it)
+            }
+        }
+    }
 }

clients/compose/src/commonMain/kotlin/com/jaytux/phoebench/clients/data/IHomeRepo.kt

@@ -9,6 +9,7 @@ import com.jaytux.phoebench.common.HomeResponse
 import com.jaytux.phoebench.common.InviteListResponse
 import com.jaytux.phoebench.common.InviteRequest
 import com.jaytux.phoebench.common.LogoutRequest
+import com.jaytux.phoebench.common.Migrate0To1Request
 import com.jaytux.phoebench.common.ProjectRequest
 import com.jaytux.phoebench.common.Routes
 import com.jaytux.phoebench.common.UserListResponse
@@ -31,6 +32,8 @@ interface IHomeRepo {
 
     suspend fun newProject(name: String, isPublic: Boolean): Either<ErrorResponse, Unit>
 
+    suspend fun migrate0To1(conversions: List<Migrate0To1Request.MigrateProject>): Either<ErrorResponse, HomeResponse>
+
     companion object {
         class Default(private val _client: Client) : IHomeRepo {
             override suspend fun getHome(): Either<ErrorResponse, HomeResponse> =
@@ -62,6 +65,9 @@ interface IHomeRepo {
 
             override suspend fun newProject(name: String, isPublic: Boolean): Either<ErrorResponse, Unit> =
                 _client.callRoute(Routes.Project.new, ProjectRequest(name, isPublic)).ignoreValue()
+
+            override suspend fun migrate0To1(conversions: List<Migrate0To1Request.MigrateProject>): Either<ErrorResponse, HomeResponse> =
+                _client.callRoute(Routes.migrate0To1, Migrate0To1Request(conversions))
         }
 
         fun default(client: Client) = Default(client)

clients/compose/src/commonMain/kotlin/com/jaytux/phoebench/clients/data/IProjectRepo.kt

@@ -4,10 +4,13 @@ import androidx.compose.ui.graphics.Color
 import com.jaytux.phoebench.clients.Client
 import com.jaytux.phoebench.clients.hexString
 import com.jaytux.phoebench.clients.ignoreValue
+import com.jaytux.phoebench.common.BenchmarkRequest
+import com.jaytux.phoebench.common.BenchmarkResponse
 import com.jaytux.phoebench.common.Either
 import com.jaytux.phoebench.common.EntryRequest
 import com.jaytux.phoebench.common.EntryResponse
 import com.jaytux.phoebench.common.ErrorResponse
+import com.jaytux.phoebench.common.PartialBenchmarkRequest
 import com.jaytux.phoebench.common.VersionRequest
 import com.jaytux.phoebench.common.VersionResponse
 import com.jaytux.phoebench.common.PartialProjectRequest
@@ -23,11 +26,15 @@ interface IProjectRepo {
     suspend fun update(name: String? = null, isPublic: Boolean? = null): Either<ErrorResponse, Unit>
     suspend fun delete(): Either<ErrorResponse, Unit>
 
+    suspend fun newBenchmark(name: String): Either<ErrorResponse, BenchmarkResponse>
+    suspend fun updateBenchmark(id: Uuid, name: String? = null): Either<ErrorResponse, Unit>
+    suspend fun deleteBenchmark(id: Uuid): Either<ErrorResponse, Unit>
+
     suspend fun newVersion(name: String, color: Color, meta: String): Either<ErrorResponse, VersionResponse>
     suspend fun updateVersion(id: Uuid, name: String? = null, color: Color? = null, meta: String? = null): Either<ErrorResponse, Unit>
     suspend fun deleteVersion(id: Uuid): Either<ErrorResponse, Unit>
 
-    suspend fun newEntry(label: Uuid, timestamp: Instant, warmups: List<Float>, measurements: List<Float>,
+    suspend fun newEntry(benchmark: Uuid, label: Uuid, timestamp: Instant, warmups: List<Float>, measurements: List<Float>,
                          unit: TimeUnit, input: String, hardware: String): Either<ErrorResponse, EntryResponse>
     suspend fun deleteEntry(id: Uuid): Either<ErrorResponse, Unit>
 
@@ -42,6 +49,15 @@ interface IProjectRepo {
             override suspend fun delete(): Either<ErrorResponse, Unit> =
                 _client.callRoute(Routes.Project.delete, _projectId).ignoreValue()
 
+            override suspend fun newBenchmark(name: String): Either<ErrorResponse, BenchmarkResponse> =
+                _client.callRoute(Routes.Benchmark.new, BenchmarkRequest(name, _projectId))
+
+            override suspend fun updateBenchmark(id: Uuid, name: String?): Either<ErrorResponse, Unit> =
+                _client.callRoute(Routes.Benchmark.update, id to PartialBenchmarkRequest(name = name)).ignoreValue()
+
+            override suspend fun deleteBenchmark(id: Uuid): Either<ErrorResponse, Unit> =
+                _client.callRoute(Routes.Benchmark.delete, id).ignoreValue()
+
             override suspend fun newVersion(name: String, color: Color, meta: String): Either<ErrorResponse, VersionResponse> =
                 _client.callRoute(Routes.Version.new, VersionRequest(name, color.hexString(), meta, _projectId))
 
@@ -51,10 +67,10 @@ interface IProjectRepo {
             override suspend fun deleteVersion(id: Uuid): Either<ErrorResponse, Unit> =
                 _client.callRoute(Routes.Version.delete, id).ignoreValue()
 
-            override suspend fun newEntry(label: Uuid, timestamp: Instant, warmups: List<Float>,
+            override suspend fun newEntry(benchmark: Uuid, label: Uuid, timestamp: Instant, warmups: List<Float>,
                                           measurements: List<Float>, unit: TimeUnit, input: String, hardware: String
             ): Either<ErrorResponse, EntryResponse> =
-                _client.callRoute(Routes.Entry.new, EntryRequest(label, timestamp, _projectId, warmups, measurements, unit, input, hardware))
+                _client.callRoute(Routes.Entry.new, EntryRequest(label, timestamp, benchmark, warmups, measurements, unit, input, hardware))
 
             override suspend fun deleteEntry(id: Uuid): Either<ErrorResponse, Unit> =
                 _client.callRoute(Routes.Entry.delete, id).ignoreValue()

clients/compose/src/commonMain/kotlin/com/jaytux/phoebench/clients/data/ProjectVM.kt

@@ -11,7 +11,10 @@ import com.jaytux.phoebench.clients.SnackProvider.Companion.snackOr
 import com.jaytux.phoebench.clients.hexString
 import com.jaytux.phoebench.clients.immutable
 import com.jaytux.phoebench.clients.insort
+import com.jaytux.phoebench.clients.insortIdx
+import com.jaytux.phoebench.clients.replace
 import com.jaytux.phoebench.clients.withScope
+import com.jaytux.phoebench.common.BenchmarkResponse
 import com.jaytux.phoebench.common.EntryResponse
 import com.jaytux.phoebench.common.VersionResponse
 import com.jaytux.phoebench.common.ProjectEvent
@@ -57,9 +60,20 @@ class ProjectVM(
     data class Entry(val id: Uuid, val label: Version, val timeStamp: Instant, val warmups: List<Float>,
                      val measurements: List<Float>, val nativeUnit: TimeUnit, val input: String, val hardware: String) {
         companion object {
-            fun fromResponse(it: EntryResponse, map: Map<Uuid, Version>) = Entry(
-                it.id, map[it.labelId] ?: Version.invalid, it.timestamp,
+            inline fun fromResponse(it: EntryResponse, map: Map<Uuid, Version>, addInput: (String) -> Unit, addHardware: (String) -> Unit) = Entry(
+                it.id, map[it.versionId] ?: Version.invalid, it.timestamp,
                 it.warmups, it.measurements, it.unit, it.input, it.hardware
+            ).also { addInput(it.input); addHardware(it.hardware) }
+        }
+    }
+
+    data class Benchmark(val id: Uuid, val name: String, val entries: List<Entry>) {
+        fun add(entry: Entry) = copy(entries = entries.insort(entry) { it.timeStamp })
+        fun remove(entry: Uuid) = copy(entries = entries.filter { it.id != entry })
+
+        companion object {
+            inline fun fromResponse(it: BenchmarkResponse, map: Map<Uuid, Version>, addInput: (String) -> Unit, addHardware: (String) -> Unit) = Benchmark(
+                it.id, it.name, it.entries.map { er -> Entry.fromResponse(er, map, addInput, addHardware) }
             )
         }
     }
@@ -69,7 +83,8 @@ class ProjectVM(
     private val _public = mutableStateOf(false)
     private val _editable = mutableStateOf(false)
     private val _labels = mutableStateOf(mapOf<Uuid, Version>())
-    private val _entries = mutableStateOf(listOf<Entry>())
+    private val _benchmarks = mutableStateOf(listOf<Benchmark>())
+    private val _currentBenchmark = mutableStateOf(0)
     private val _inputs = mutableStateOf(setOf<String>())
     private val _hardware = mutableStateOf(setOf<String>())
 
@@ -78,7 +93,8 @@ class ProjectVM(
     val public = _public.immutable()
     val editable = _editable.immutable()
     val versions = _labels.immutable()
-    val entries = _entries.immutable()
+    val benchmarks = _benchmarks.immutable()
+    val currentBenchmark = _currentBenchmark.immutable()
     val inputs = _inputs.immutable()
     val hardware = _hardware.immutable()
 
@@ -102,14 +118,10 @@ class ProjectVM(
                 _owner.value = it.owner.name
                 _public.value = it.isPublic
                 _editable.value = it.isEditable
-                _labels.value = it.usedLabels.associate { l -> l.id to Version.fromResponse(l) }
+                _labels.value = it.versions.associate { l -> l.id to Version.fromResponse(l) }
                 val localInputs = mutableSetOf<String>()
                 val localHardware = mutableSetOf<String>()
-                _entries.value = it.entries.map { e ->
-                    localInputs += e.input
-                    localHardware += e.hardware
-                    Entry.fromResponse(e, _labels.value)
-                }
+                _benchmarks.value = it.benchmarks.map { b -> Benchmark.fromResponse(b, _labels.value, localInputs::add, localHardware::add) }
                 _inputs.value = localInputs
                 _hardware.value = localHardware
             }
@@ -119,13 +131,12 @@ class ProjectVM(
     private fun handleProjectEvent(event: ProjectEvent) {
         when(event) {
             ProjectEvent.Deleted -> back()
-            is ProjectEvent.EntryDeleted -> _entries.value = _entries.value.filter { it.id != event.id }
+            is ProjectEvent.EntryDeleted -> _benchmarks.value = _benchmarks.value.replace({ it.id == event.benchmarkId }) { it.remove(event.id) }
             is ProjectEvent.VersionChanged -> _labels.value += (event.label.id to Version.fromResponse(event.label))
             is ProjectEvent.VersionDeleted -> _labels.value = _labels.value.filter { it.value.id != event.id }
             is ProjectEvent.NewEntry -> {
-                _entries.value = _entries.value.insort(Entry.fromResponse(event.entry, _labels.value), Entry::timeStamp)
-                _inputs.value += event.entry.input
-                _hardware.value += event.entry.hardware
+                _benchmarks.value = _benchmarks.value.replace({ it.id == event.entry.benchmarkId }) { it.add(Entry.fromResponse(event.entry, _labels.value,
+                    { input -> _inputs.value += input }, { hw -> _hardware.value += hw })) }
             }
             is ProjectEvent.NewVersion -> _labels.value += (event.label.id to Version.fromResponse(event.label))
             is ProjectEvent.Updated -> {
@@ -133,6 +144,23 @@ class ProjectVM(
                 _owner.value = event.changes.owner.name
                 _public.value = event.changes.isPublic
             }
+
+            is ProjectEvent.BenchmarkChanged -> _benchmarks.value = _benchmarks.value.replace({ it.id == event.benchmark.id }) { it.copy(name = event.benchmark.name) }
+            is ProjectEvent.BenchmarkDeleted -> {
+                val idx = _benchmarks.value.indexOfFirst { it.id == event.id }
+                if(idx == _currentBenchmark.value) _currentBenchmark.value = 0
+                else if(idx < _currentBenchmark.value) _currentBenchmark.value -= 1
+                _benchmarks.value = _benchmarks.value.filter { it.id != event.id }
+            }
+            is ProjectEvent.NewBenchmark -> {
+                val (updated, idx) = _benchmarks.value.insortIdx(
+                    Benchmark.fromResponse(event.benchmark, _labels.value, { i -> _inputs.value += i }, { hw -> _hardware.value += hw })
+                ) { it.name }
+                if(idx != null) {
+                    if(idx < _currentBenchmark.value) _currentBenchmark.value += 1
+                }
+                _benchmarks.value = updated
+            }
         }
     }
 
@@ -183,24 +211,69 @@ class ProjectVM(
         }
     }
 
-    fun mkEntry(label: Version, warmups: List<Float>, measurements: List<Float>, unit: TimeUnit, input: String, hardware: String) {
+    fun mkBenchmark(name: String) {
         withScope {
-            _repo.newEntry(label.id, Clock.System.now(), warmups, measurements, unit, input, hardware).snackOr {
+            _repo.newBenchmark(name).snackOr { bench ->
                 if(_job == null) {
-                    _entries.value += Entry.fromResponse(it, _labels.value)
-                    _inputs.value += input
-                    _hardware.value += hardware
+                    val (updated, idx) = _benchmarks.value.insortIdx(
+                        Benchmark.fromResponse(bench, _labels.value, { i -> _inputs.value += i }, { hw -> _hardware.value += hw })
+                    ) { it.name }
+                    _currentBenchmark.value?.let { curr ->
+                        if(idx != null) {
+                            if(idx < curr) _currentBenchmark.value = curr + 1
+                        }
+                    }
+                    _benchmarks.value = updated
                 }
             }
         }
     }
 
-    fun deleteEntry(id: Uuid) {
+    fun updateBenchmark(id: Uuid, name: String?) {
         withScope {
-            _repo.deleteEntry(id).snackOr {
-                if(_job == null)
-                    _entries.value = _entries.value.filter { it.id != id }
+            val old = _benchmarks.value.find { it.id == id } ?: return@withScope
+            _repo.updateVersion(id, name).snackOr {
+                if(_job == null) {
+                    _benchmarks.value = _benchmarks.value.replace({ it.id == id }) { it.copy(name = name ?: old.name) }
                 }
             }
         }
+    }
+
+    fun deleteBenchmark(id: Uuid) {
+        withScope {
+            _repo.deleteBenchmark(id).snackOr {
+                if(_job == null) {
+                    val idx = _benchmarks.value.indexOfFirst { it.id == id }
+                    if(idx == _currentBenchmark.value) _currentBenchmark.value = 0
+                    else if(idx < _currentBenchmark.value) _currentBenchmark.value -= 1
+                    _benchmarks.value = _benchmarks.value.filter { it.id != id }
+                }
+            }
+        }
+    }
+
+    fun mkEntry(label: Version, warmups: List<Float>, measurements: List<Float>, unit: TimeUnit, input: String, hardware: String) {
+        withScope {
+            val current = _benchmarks.value.getOrNull(_currentBenchmark.value) ?: return@withScope
+            _repo.newEntry(current.id, label.id, Clock.System.now(), warmups, measurements, unit, input, hardware).snackOr { entry ->
+                if(_job == null) {
+                    _benchmarks.value = _benchmarks.value.replace({ it.id == entry.benchmarkId }) { it.add(Entry.fromResponse(entry, _labels.value,
+                    { input -> _inputs.value += input }, { hw -> _hardware.value += hw })) }
+                }
+            }
+        }
+    }
+
+    fun previousBenchmark() {
+        _currentBenchmark.value = maxOf(0, minOf(_currentBenchmark.value - 1, _benchmarks.value.size - 1))
+    }
+
+    fun nextBenchmark() {
+        _currentBenchmark.value = maxOf(0, minOf(_currentBenchmark.value + 1, _benchmarks.value.size - 1))
+    }
+
+    fun selectBenchmark(id: Uuid) {
+        _currentBenchmark.value = maxOf(_benchmarks.value.indexOfFirst { it.id == id }, 0)
+    }
 }

clients/compose/src/commonMain/kotlin/com/jaytux/phoebench/clients/ui/HomeView.kt

@@ -320,7 +320,19 @@ fun ConfirmLogoutDialog(onCancel: () -> Unit, onLogout: (everywhere: Boolean) ->
 @Composable
 fun HomeView(onSelectProject: (Uuid) -> Unit) {
     val vm = viewModel { HomeVM() }
+    val todo by vm.stepsNeeded
 
+    todo.firstOrNull()?.let {
+        Box(Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
+            when (it) {
+                is HomeResponse.NeededMigration.Migrate0To1 -> Migrate0To1View(vm, it)
+            }
+        }
+    } ?: HomePanel(vm, onSelectProject)
+}
+
+@Composable
+fun HomePanel(vm: HomeVM, onSelectProject: (Uuid) -> Unit) {
     val auth = AuthProvider.get()
     val username by vm.username
     val isAdmin by vm.isAdmin

clients/compose/src/commonMain/kotlin/com/jaytux/phoebench/clients/ui/MigrateView.kt

@@ -0,0 +1,241 @@
+package com.jaytux.phoebench.clients.ui
+
+import androidx.compose.foundation.BorderStroke
+import androidx.compose.foundation.border
+import androidx.compose.foundation.draganddrop.dragAndDropSource
+import androidx.compose.foundation.draganddrop.dragAndDropTarget
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.IntrinsicSize
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.layout.widthIn
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.grid.GridCells
+import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
+import androidx.compose.foundation.lazy.grid.items
+import androidx.compose.foundation.lazy.grid.itemsIndexed
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material3.Button
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.LocalContentColor
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.SegmentedButton
+import androidx.compose.material3.SegmentedButtonDefaults
+import androidx.compose.material3.SingleChoiceSegmentedButtonRow
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Switch
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateListOf
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draganddrop.DragAndDropEvent
+import androidx.compose.ui.draganddrop.DragAndDropTarget
+import androidx.compose.ui.text.font.FontStyle
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.window.Dialog
+import com.composables.icons.lucide.Cross
+import com.composables.icons.lucide.Lucide
+import com.composables.icons.lucide.Plus
+import com.composables.icons.lucide.X
+import com.jaytux.phoebench.clients.app
+import com.jaytux.phoebench.clients.data.HomeVM
+import com.jaytux.phoebench.clients.drag
+import com.jaytux.phoebench.clients.drop
+import com.jaytux.phoebench.clients.removeAt
+import com.jaytux.phoebench.clients.replace
+import com.jaytux.phoebench.common.HomeResponse
+import com.jaytux.phoebench.common.Migrate0To1Request
+
+@Composable
+fun Migrate0To1View(vm: HomeVM, input: HomeResponse.NeededMigration.Migrate0To1) {
+    var isAdding by remember { mutableStateOf(false) }
+
+    var projectsToDo by remember { mutableStateOf(input.projects) }
+    var remapped by remember { mutableStateOf(listOf<Triple<String, Boolean, List<HomeResponse.NeededMigration.Migrate0To1.OldProject>>>()) }
+
+    Surface(Modifier.fillMaxSize(0.85f), color = MaterialTheme.colorScheme.surfaceVariant, tonalElevation = 10.dp, shape = MaterialTheme.shapes.large) {
+        Column(Modifier.padding(15.dp)) {
+            Text("Data Migration", style = MaterialTheme.typography.headlineMedium)
+            Text("The server you connected to has been updated, requiring some decisions from you.")
+            Text("This new version allows you to organise different benchmarks together in one project. That way, they will share installed versions.")
+            Text("Please create the new projects you would like to use, and drag the existing projects onto them as benchmarks. You can also drag a benchmark onto an empty space to have it become a top-level project containing a benchmark with the same name.")
+            Spacer(Modifier.height(10.dp))
+
+            Row(Modifier.weight(1f)) {
+                var showTargets by remember { mutableStateOf(false) }
+
+                val globalTarget = remember {
+                    object : DragAndDropTarget {
+                        override fun onStarted(event: DragAndDropEvent) {
+                            showTargets = true
+                            super.onStarted(event)
+                        }
+
+                        override fun onEnded(event: DragAndDropEvent) {
+                            showTargets = false
+                            super.onEnded(event)
+                        }
+
+                        override fun onDrop(event: DragAndDropEvent): Boolean {
+                            val got = drop<HomeResponse.NeededMigration.Migrate0To1.OldProject>(event) ?: return false
+
+                            println("DROP ONTO global")
+                            projectsToDo = projectsToDo.filter { it.id != got.id }
+                            remapped += got.name to false app listOf(got)
+                            return true
+                        }
+
+                    }
+                }
+
+                val startMod = if(showTargets) Modifier.border(BorderStroke(3.dp, MaterialTheme.colorScheme.onSurface)) else Modifier
+
+                Surface(startMod.weight(0.66f).fillMaxHeight().dragAndDropTarget({ true }, globalTarget), tonalElevation = 10.dp, shape = MaterialTheme.shapes.large) {
+                    Column(Modifier.padding(10.dp)) {
+                        Text("New projects", style = MaterialTheme.typography.headlineSmall)
+
+                        LazyVerticalGrid(GridCells.Adaptive(minSize = 350.dp), Modifier.weight(1f)) {
+                            itemsIndexed(remapped) { idx, (name, public, old) ->
+                                val target = remember {
+                                    object : DragAndDropTarget {
+                                        override fun onStarted(event: DragAndDropEvent) {
+                                            showTargets = true
+                                            super.onStarted(event)
+                                        }
+
+                                        override fun onEnded(event: DragAndDropEvent) {
+                                            showTargets = false
+                                            super.onEnded(event)
+                                        }
+
+                                        override fun onDrop(event: DragAndDropEvent): Boolean {
+                                            val got = drop<HomeResponse.NeededMigration.Migrate0To1.OldProject>(event) ?: return false
+
+                                            println("DROP ONTO $name")
+                                            projectsToDo = projectsToDo.filter { it.id != got.id }
+                                            remapped = remapped.replace({ it.first == name }) { it.first to it.second app (it.third + got) }
+                                            return true
+                                        }
+                                    }
+                                }
+
+                                val toggle = { public: Boolean ->
+                                    remapped = remapped.replace({ it.first == name }) { it.first to public app it.third }
+                                }
+
+                                Surface(startMod.padding(5.dp).dragAndDropTarget({ true }, target), color = MaterialTheme.colorScheme.tertiaryContainer, tonalElevation = 4.dp, shadowElevation = 1.dp, shape = MaterialTheme.shapes.medium) {
+                                    Row(Modifier.padding(5.dp).width(IntrinsicSize.Min)) {
+                                        Column(Modifier.weight(1f)) {
+                                            Text(name)
+                                            SingleChoiceSegmentedButtonRow(Modifier.fillMaxWidth()) {
+                                                SegmentedButton(!public, { toggle(false) }, SegmentedButtonDefaults.itemShape(0, 2)) { Text("Private") }
+                                                SegmentedButton(public, { toggle(true) }, SegmentedButtonDefaults.itemShape(1, 2)) { Text("Public") }
+                                            }
+                                            Column(Modifier.padding(start = 5.dp)) {
+                                                old.forEach { Text(it.name, style = MaterialTheme.typography.bodySmall) }
+                                            }
+                                        }
+
+                                        IconButton({ projectsToDo += old; remapped = remapped.removeAt(idx) }) {
+                                            Icon(Lucide.X, "Remove")
+                                        }
+                                    }
+                                }
+                            }
+
+                            if(remapped.isNotEmpty()) {
+                                item {
+                                    Surface(startMod.padding(5.dp).dragAndDropTarget({ true }, globalTarget), color = MaterialTheme.colorScheme.tertiaryContainer, tonalElevation = 4.dp, shadowElevation = 1.dp, shape = MaterialTheme.shapes.medium) {
+                                        Text("Create new...", Modifier.padding(vertical = 15.dp), fontStyle = FontStyle.Italic, color = LocalContentColor.current.copy(alpha = 0.66f))
+                                    }
+                                }
+                            }
+                        }
+
+                        Spacer(Modifier.height(10.dp))
+
+                        Row {
+                            Box(Modifier.weight(1f))
+                            IconButton({ isAdding = true }) {
+                                Icon(Lucide.Plus, "Add project")
+                            }
+                        }
+                    }
+                }
+
+                Spacer(Modifier.width(10.dp))
+
+                Surface(Modifier.weight(0.33f).fillMaxHeight(), tonalElevation = 10.dp, shape = MaterialTheme.shapes.large) {
+                    LazyColumn(Modifier.padding(10.dp).fillMaxHeight()) {
+                        stickyHeader {
+                            Text("Existing projects", style = MaterialTheme.typography.headlineSmall)
+                        }
+                        items(projectsToDo) {
+                            Column {
+                                Surface(Modifier.padding(5.dp).fillMaxWidth().dragAndDropSource { _ -> drag(it) }, tonalElevation = 15.dp, shape = MaterialTheme.shapes.medium) {
+                                    Text("${it.name} (${it.versions.size} versions)", Modifier.padding(10.dp))
+                                }
+                                Spacer(Modifier.height(10.dp))
+                            }
+                        }
+                    }
+                }
+            }
+
+            Spacer(Modifier.height(10.dp))
+
+            Row {
+                Box(Modifier.weight(1f))
+
+                Button({ vm.migrate(remapped.map { (name, public, old) -> Migrate0To1Request.MigrateProject(name, public, old.map { it.id }) }) },
+                    enabled = projectsToDo.isEmpty()) {
+                    Text("Perform migration")
+                }
+            }
+        }
+    }
+
+    if(isAdding) AddProjectDialog({ isAdding = false }) { name, public ->
+        remapped += name to public app listOf()
+        isAdding = false
+    }
+}
+
+@Composable
+fun AddProjectDialog(onCancel: () -> Unit, onAdd: (name: String, public: Boolean) -> Unit) {
+    Dialog(onDismissRequest = onCancel) {
+        var name by remember { mutableStateOf("") }
+        var public by remember { mutableStateOf(false) }
+
+        Surface(Modifier.padding(15.dp).widthIn(400.dp), shape = MaterialTheme.shapes.medium) {
+            Column(Modifier.padding(8.dp).width(IntrinsicSize.Min)) {
+                Text("Create new project", Modifier.align(Alignment.CenterHorizontally), style = MaterialTheme.typography.headlineMedium)
+                OutlinedTextField(name, { name = it }, Modifier.fillMaxWidth(), label = { Text("Name") })
+                Spacer(Modifier.height(10.dp))
+                SingleChoiceSegmentedButtonRow(Modifier.fillMaxWidth()) {
+                    SegmentedButton(!public, { public = false }, SegmentedButtonDefaults.itemShape(0, 2)) { Text("Private") }
+                    SegmentedButton(public, { public = true }, SegmentedButtonDefaults.itemShape(1, 2)) { Text("Public") }
+                }
+                Spacer(Modifier.height(10.dp))
+
+                CancelConfirmXRow(onCancel, {
+                    onAdd(name.trim(), public)
+                }, confirmText = "Create", canConfirm = name.trim().isNotBlank())
+            }
+        }
+    }
+}

clients/compose/src/commonMain/kotlin/com/jaytux/phoebench/clients/ui/ProjectView.kt

@@ -50,13 +50,13 @@ fun ProjectView(id: Uuid, forceBack: () -> Unit) {
     val owner by vm.owner
     val public by vm.public
     val editable by vm.editable
-    val labels by vm.versions
+    val versions by vm.versions
+    val benchmarks by vm.benchmarks
+    val currentBenchmark by vm.currentBenchmark
 
     var editing by remember { mutableStateOf(false) }
     var deleting by remember { mutableStateOf(false) }
-    var addOpen by remember { mutableStateOf(false) }
-    var addingLabel by remember { mutableStateOf(false) }
-    var addingData by remember { mutableStateOf(false) }
+    var addingBenchmark by remember { mutableStateOf(false) }
 
     Column(Modifier.padding(all = 15.dp)) {
         Row(Modifier.height(IntrinsicSize.Min), verticalAlignment = Alignment.CenterVertically) {
@@ -73,9 +73,79 @@ fun ProjectView(id: Uuid, forceBack: () -> Unit) {
         }
         owner?.let { Text("${if(public) "Public" else "Private"} project by user $it") }
         Spacer(Modifier.height(15.dp))
+        benchmarks.getOrNull(currentBenchmark)?.let { curr ->
+            ProjectPanel(vm, editable, versions, benchmarks, currentBenchmark, curr) { addingBenchmark = true }
+        } ?: run {
+            Surface(Modifier.padding(15.dp), shape = MaterialTheme.shapes.medium) {
+                Box(Modifier.fillMaxSize()) {
+                    Text("No benchmarks yet...", Modifier.align(Alignment.Center), fontStyle = FontStyle.Italic)
+
+                    if(addingBenchmark) {
+                        CompositionLocalProvider(LocalIndication provides NoFeedbackIndication()) {
+                            Box(Modifier.clickable { addingBenchmark = false }.fillMaxSize())
+                        }
+                    }
+
+                    Box(Modifier.align(Alignment.BottomEnd).padding(25.dp)) {
+                        IconButton({ addingBenchmark = true }, Modifier.scale(1.5f), shape = MaterialTheme.shapes.medium) {
+                            Icon(Lucide.Plus, "Add benchmark")
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    if(editing) ProjectEditDialog(name ?: "Unnamed Project", public, { editing = false }) { name, public ->
+        vm.update(name, public)
+    }
+
+    if(deleting) ConfirmDeleteProjectDialog(name ?: "Unnamed Project", { deleting = false }) {
+        vm.delete()
+    }
+
+    if(addingBenchmark) AddBenchmarkDialog({ addingBenchmark = false }) {
+        vm.mkBenchmark(it)
+        addingBenchmark = false
+    }
+}
+
+@Composable
+fun ProjectPanel(vm: ProjectVM, editable: Boolean, versions: Map<Uuid, ProjectVM.Version>, benchmarks: List<ProjectVM.Benchmark>, currentIndex: Int, currentBenchmark: ProjectVM.Benchmark, onAddBenchmark: () -> Unit) {
+    var addOpen by remember { mutableStateOf(false) }
+    var addingLabel by remember { mutableStateOf(false) }
+    var addingData by remember { mutableStateOf(false) }
+
     Surface(Modifier.fillMaxSize().padding(8.dp), tonalElevation = 10.dp, shape = MaterialTheme.shapes.medium) {
+        Column(Modifier.fillMaxSize()) {
+            Surface(Modifier.fillMaxWidth(), tonalElevation = 10.dp, shape = MaterialTheme.shapes.medium) {
+                Row(Modifier.padding(15.dp), verticalAlignment = Alignment.CenterVertically) {
+                    IconButton({ vm.previousBenchmark() }, enabled = currentIndex > 0) {
+                        Icon(Lucide.ChevronLeft, "Previous benchmark")
+                    }
+
+                    Box(Modifier.weight(1f)) {
+                        var isOpen by remember { mutableStateOf(false) }
+                        Row(Modifier.clickable { isOpen = !isOpen }, verticalAlignment = Alignment.CenterVertically) {
+                            Text(currentBenchmark.name, style = MaterialTheme.typography.headlineMedium)
+                            Spacer(Modifier.width(10.dp))
+                            Icon(Lucide.ChevronDown, "Select benchmark...")
+                        }
+
+                        DropdownMenu(isOpen, { isOpen = false }) {
+                            benchmarks.forEach { b ->
+                                DropdownMenuItem({ Text(b.name, style = MaterialTheme.typography.headlineSmall) }, { vm.selectBenchmark(b.id); isOpen = false })
+                            }
+                        }
+                    }
+
+                    IconButton({ vm.nextBenchmark() }, enabled = currentIndex < benchmarks.size - 1) {
+                        Icon(Lucide.ChevronRight, "Previous benchmark")
+                    }
+                }
+            }
             Box(Modifier.fillMaxSize().padding(15.dp)) {
-                ProjectPlotArea(vm)
+                ProjectPlotArea(vm, currentBenchmark)
 
                 if(editable) {
                     if(addOpen) {
@@ -88,9 +158,22 @@ fun ProjectView(id: Uuid, forceBack: () -> Unit) {
                         if (addOpen) {
                             var lblWidth by mutableStateOf(1000.dp)
                             var dataWidth by mutableStateOf(1000.dp)
+                            var benchWidth by mutableStateOf(1000.dp)
                             val density = LocalDensity.current
 
-                            Column(Modifier.width(maxOf(lblWidth, dataWidth)), horizontalAlignment = Alignment.End) {
+                            Column(Modifier.width(maxOf(lblWidth, dataWidth, benchWidth)), horizontalAlignment = Alignment.End) {
+                                Surface(Modifier.onGloballyPositioned {
+                                    benchWidth = with(density) { it.size.width.toDp() }
+                                }, shape = MaterialTheme.shapes.small, shadowElevation = 10.dp) {
+                                    Row(Modifier.clickable(onClick = onAddBenchmark).padding(15.dp)) {
+                                        Icon(Lucide.TestTubeDiagonal, "Add benchmark")
+                                        Spacer(Modifier.width(5.dp))
+                                        Text("Benchmark")
+                                    }
+                                }
+
+                                Spacer(Modifier.height(15.dp))
+
                                 Surface(Modifier.onGloballyPositioned {
                                     lblWidth = with(density) { it.size.width.toDp() }
                                 }, shape = MaterialTheme.shapes.small, shadowElevation = 10.dp) {
@@ -126,14 +209,6 @@ fun ProjectView(id: Uuid, forceBack: () -> Unit) {
         }
     }
 
-    if(editing) ProjectEditDialog(name ?: "Unnamed Project", public, { editing = false }) { name, public ->
-        vm.update(name, public)
-    }
-
-    if(deleting) ConfirmDeleteProjectDialog(name ?: "Unnamed Project", { deleting = false }) {
-        vm.delete()
-    }
-
     if(addingLabel) AddVersionDialog({ addingLabel = false; addOpen = false }) { name, color, meta ->
         vm.mkLabel(name, color, meta)
         addOpen = false
@@ -142,7 +217,7 @@ fun ProjectView(id: Uuid, forceBack: () -> Unit) {
     val usedInputs by vm.inputs
     val usedHardware by vm.hardware
 
-    if(addingData) AddEntryDialog(labels, usedInputs, usedHardware,
+    if(addingData) AddEntryDialog(versions, usedInputs, usedHardware,
         onCancel = { addingData = false; addOpen = false },
         onAddLbl = { name, lbl, meta -> vm.mkLabel(name, lbl, meta) }
     ) { label, warmups, measurements, unit, input, hardware ->
@@ -159,7 +234,7 @@ fun ProjectEditDialog(name: String, public: Boolean, onCancel: () -> Unit, onSav
 
         Surface(Modifier.padding(15.dp), shape = MaterialTheme.shapes.medium) {
             Column(Modifier.padding(8.dp).width(IntrinsicSize.Min)) {
-                Text("Create project", Modifier.align(Alignment.CenterHorizontally), style = MaterialTheme.typography.headlineMedium)
+                Text("Modify project", Modifier.align(Alignment.CenterHorizontally), style = MaterialTheme.typography.headlineMedium)
                 OutlinedTextField(updName, { updName = it }, Modifier.fillMaxWidth(), label = { Text("Name") })
                 Spacer(Modifier.height(10.dp))
                 Row(Modifier.align(Alignment.End), verticalAlignment = Alignment.CenterVertically) {
@@ -193,6 +268,25 @@ fun ConfirmDeleteProjectDialog(name: String, onCancel: () -> Unit, onDelete: ()
     }
 }
 
+@Composable
+fun AddBenchmarkDialog(onCancel: () -> Unit, onAdd: (name: String) -> Unit) {
+    Dialog(onDismissRequest = onCancel) {
+        var name by remember { mutableStateOf("") }
+
+        Surface(Modifier.padding(15.dp).widthIn(400.dp), shape = MaterialTheme.shapes.medium) {
+            Column(Modifier.padding(8.dp).width(IntrinsicSize.Min)) {
+                Text("Create benchmark", Modifier.align(Alignment.CenterHorizontally), style = MaterialTheme.typography.headlineMedium)
+                OutlinedTextField(name, { name = it }, Modifier.fillMaxWidth(), label = { Text("Name") })
+                Spacer(Modifier.height(10.dp))
+
+                CancelConfirmXRow(onCancel, {
+                    onAdd(name.trim())
+                }, confirmText = "Create", canConfirm = name.trim().isNotBlank())
+            }
+        }
+    }
+}
+
 @Composable
 fun AddVersionDialog(onCancel: () -> Unit, onAdd: (name: String, color: Color, meta: String) -> Unit) {
     Dialog(onDismissRequest = onCancel) {
@@ -408,8 +502,8 @@ fun EditVersionDialog(current: ProjectVM.Version, onCancel: () -> Unit, onUpdate
 }
 
 @Composable
-fun ProjectPlotArea(vm: ProjectVM){
-    val entries by vm.entries
+fun ProjectPlotArea(vm: ProjectVM, benchmark: ProjectVM.Benchmark) {
+    val entries = benchmark.entries
     val versions by vm.versions
     val editable by vm.editable
     val allInputs by vm.inputs

clients/compose/src/desktopMain/kotlin/com/jaytux/phoebench/clients/PlatformAPI.desktop.kt

@@ -2,6 +2,11 @@ package com.jaytux.phoebench.clients
 
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.ExperimentalComposeUiApi
+import androidx.compose.ui.draganddrop.DragAndDropEvent
+import androidx.compose.ui.draganddrop.DragAndDropTransferAction
+import androidx.compose.ui.draganddrop.DragAndDropTransferData
+import androidx.compose.ui.draganddrop.DragAndDropTransferable
+import androidx.compose.ui.draganddrop.awtTransferable
 import androidx.compose.ui.platform.ClipEntry
 import com.github.javakeyring.Keyring
 import com.jaytux.phoebench.clients.ui.DefaultServerSelect
@@ -10,6 +15,7 @@ import io.ktor.client.engine.okhttp.*
 import kotlinx.serialization.KSerializer
 import kotlinx.serialization.json.Json
 import kotlinx.serialization.serializer
+import java.awt.datatransfer.DataFlavor
 import java.awt.datatransfer.StringSelection
 import kotlin.uuid.Uuid
 
@@ -63,3 +69,16 @@ actual fun format(f: Float): String = String.format("%.03f", f)
 
 @Composable
 actual fun ServerSelect(server: String, onUpdate: (String) -> Unit) = DefaultServerSelect(server, onUpdate)
+
+@OptIn(ExperimentalComposeUiApi::class)
+actual fun <T> drag(data: T, serializer: KSerializer<T>): DragAndDropTransferData =
+    DragAndDropTransferData(
+        DragAndDropTransferable(StringSelection(Json.encodeToString(serializer, data))),
+        supportedActions = listOf(DragAndDropTransferAction.Move)
+    )
+
+@OptIn(ExperimentalComposeUiApi::class)
+actual fun <T> drop(data: DragAndDropEvent, serializer: KSerializer<T>): T? =
+    if(data.awtTransferable.isDataFlavorSupported(DataFlavor.stringFlavor))
+        Json.decodeFromString(serializer, data.awtTransferable.getTransferData(DataFlavor.stringFlavor) as String)
+    else null

clients/compose/src/wasmJsMain/kotlin/com/jaytux/phoebench/clients/PlatformAPI.wasmJs.kt

@@ -1,6 +1,10 @@
 package com.jaytux.phoebench.clients
 
 import androidx.compose.runtime.Composable
+import androidx.compose.ui.ExperimentalComposeUiApi
+import androidx.compose.ui.draganddrop.DragAndDropEvent
+import androidx.compose.ui.draganddrop.DragAndDropTransferData
+import androidx.compose.ui.draganddrop.domDataTransferOrNull
 import androidx.compose.ui.platform.ClipEntry
 import com.jaytux.phoebench.clients.ui.constantServerSelect
 import io.ktor.client.*
@@ -10,8 +14,10 @@ import kotlinx.coroutines.await
 import kotlinx.serialization.KSerializer
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.encodeToString
 import kotlinx.serialization.json.Json
 import kotlinx.serialization.serializer
+import org.w3c.dom.DataTransfer
 import kotlin.uuid.Uuid
 
 object WasmJsStore : IStore {
@@ -75,3 +81,18 @@ lateinit var config: Config
 actual fun ServerSelect(server: String, onUpdate: (String) -> Unit) {
     constantServerSelect(config.server)(server, onUpdate)
 }
+
+@OptIn(ExperimentalWasmJsInterop::class)
+@JsFun("() => new DataTransfer()")
+private external fun createDataTransfer(): DataTransfer
+
+@OptIn(ExperimentalComposeUiApi::class)
+actual fun <T> drag(data: T, serializer: KSerializer<T>): DragAndDropTransferData = DragAndDropTransferData(
+    createDataTransfer().also { it.setData("application/json", Json.encodeToString(serializer, data)) }
+)
+
+@OptIn(ExperimentalComposeUiApi::class)
+actual fun <T> drop(data: DragAndDropEvent, serializer: KSerializer<T>): T? =
+    data.transferData?.domDataTransferOrNull?.getData("application/json")?.let {
+        Json.decodeFromString(serializer, it)
+    }

common/build.gradle.kts

@@ -11,6 +11,8 @@ val partialsDirectory = layout.buildDirectory.dir("generated/sources/partials")
 val versionDirectory = layout.buildDirectory.dir("generated/sources/version")
 val requestsDirectory = layout.projectDirectory.dir("src/commonMain/kotlin/com/jaytux/phoebench/common/")
 
+version = rootProject.version as PhoebenchVersion
+
 val generatePartials = tasks.register<Exec>("generatePartials") {
     group = "generation"
     description = "Generate Partial classes (requests with all-nullable fields)"
@@ -37,7 +39,7 @@ val generateVersion = tasks.register<Task>("protocolVersion") {
             package com.jaytux.phoebench.common
             
             object ProtocolVersion {
-                const val VERSION="${rootProject.version}"
+                const val VERSION="${version}"
             }
         """.trimIndent())
     }

common/src/commonMain/kotlin/com/jaytux/phoebench/common/Events.kt

@@ -42,6 +42,15 @@ sealed class ProjectEvent {
     @Serializable
     data class Updated(val changes: HomeResponse.ProjectSummary) : ProjectEvent()
 
+    @Serializable
+    data class NewBenchmark(val benchmark: BenchmarkResponse) : ProjectEvent()
+
+    @Serializable
+    data class BenchmarkChanged(val benchmark: BenchmarkSummary) : ProjectEvent()
+
+    @Serializable
+    data class BenchmarkDeleted(val id: Uuid) : ProjectEvent()
+
     @Serializable
     data class NewVersion(val label: VersionResponse) : ProjectEvent()
 
@@ -55,5 +64,5 @@ sealed class ProjectEvent {
     data class NewEntry(val entry: EntryResponse) : ProjectEvent()
 
     @Serializable
-    data class EntryDeleted(val id: Uuid) : ProjectEvent()
+    data class EntryDeleted(val id: Uuid, val benchmarkId: Uuid) : ProjectEvent()
 }

common/src/commonMain/kotlin/com/jaytux/phoebench/common/Requests.kt

@@ -19,13 +19,16 @@ class EmptyRequest
 data class RefreshRequest(val refreshToken: Uuid)
 
 @Serializable @ToPartialize
-data class ProjectRequest(val name: String, var isPublic: Boolean)
+data class ProjectRequest(val name: String, val isPublic: Boolean)
 
 @Serializable @ToPartialize
-data class VersionRequest(val name: String, val color: String, val meta: String, val projectId: Uuid)
+data class BenchmarkRequest(val name: String, val projectId: Uuid)
 
 @Serializable @ToPartialize
-data class EntryRequest(val version: Uuid, val timestamp: Instant, val projectId: Uuid, val warmups: List<Float>,
+data class VersionRequest(val name: String, val color: String, val meta: String, val benchmarkId: Uuid)
+
+@Serializable @ToPartialize
+data class EntryRequest(val version: Uuid, val timestamp: Instant, val benchmarkId: Uuid, val warmups: List<Float>,
                         val measurements: List<Float>, val unit: TimeUnit, val input: String, val hardware: String)
 
 @Serializable
@@ -36,3 +39,9 @@ data class UserUpdateRequest(val projectLimit: Int? = null, val isAdmin: Boolean
 
 @Serializable
 data class InviteRequest(val asAdmin: Boolean)
+
+@Serializable
+data class Migrate0To1Request(val conversions: List<MigrateProject>) {
+    @Serializable
+    data class MigrateProject(val newProjectName: String, val isPublic: Boolean, val oldProjectsAsBenchmarks: List<Uuid>)
+}

common/src/commonMain/kotlin/com/jaytux/phoebench/common/Responses.kt

@@ -32,20 +32,35 @@ data class UserListResponse(val users: List<UserData>) {
 data class NamedID(val name: String, val id: Uuid)
 
 @Serializable
-data class HomeResponse(val username: String, val isAdmin: Boolean, val projectLimit: Int, val ownProjects: List<ProjectSummary>, val publicProjects: List<ProjectSummary>) {
+data class HomeResponse(val username: String, val isAdmin: Boolean, val projectLimit: Int, val ownProjects: List<ProjectSummary>, val publicProjects: List<ProjectSummary>, val neededMigrations: List<NeededMigration>) {
     @Serializable
     data class ProjectSummary(val id: Uuid, val name: String, val isPublic: Boolean, val owner: NamedID)
+
+    @Serializable
+    sealed class NeededMigration {
+        @Serializable
+        data class Migrate0To1(val projects: List<OldProject>) : NeededMigration() {
+            @Serializable
+            data class OldProject(val id: Uuid, val name: String, val versions: List<VersionResponse>)
+        }
+    }
 }
 
 @Serializable
 data class ProjectResponse(val id: Uuid, val name: String, val owner: NamedID, val isPublic: Boolean, val isEditable: Boolean,
-                           val usedLabels: List<VersionResponse>, val entries: List<EntryResponse>)
+                           val benchmarks: List<BenchmarkResponse>, val versions: List<VersionResponse>)
+
+@Serializable
+data class BenchmarkSummary(val id: Uuid, val name: String)
+
+@Serializable
+data class BenchmarkResponse(val id: Uuid, val name: String, val entries: List<EntryResponse>)
 
 @Serializable
 data class VersionResponse(val id: Uuid, val name: String, val color: String, val meta: String)
 
 @Serializable
-data class EntryResponse(val id: Uuid, val labelId: Uuid, val timestamp: Instant, val warmups: List<Float>,
+data class EntryResponse(val id: Uuid, val benchmarkId: Uuid, val versionId: Uuid, val timestamp: Instant, val warmups: List<Float>,
                          val measurements: List<Float>, val unit: TimeUnit, val input: String, val hardware: String)
 
 @Serializable

common/src/commonMain/kotlin/com/jaytux/phoebench/common/Routes.kt

@@ -22,6 +22,7 @@ object Routes {
 
     val handshake = ApiRoute.get<HandshakeResponse>("/", Elevation.UN_AUTH)
     val home = ApiRoute.get<HomeResponse>("/home", Elevation.AUTH)
+    val migrate0To1 = ApiRoute.post<Migrate0To1Request, HomeResponse>("/migrate/0-1", Elevation.AUTH)
 
     object Project {
         val new = ApiRoute.post<ProjectRequest, ProjectResponse>("/project", Elevation.AUTH)
@@ -30,6 +31,12 @@ object Routes {
         val delete = ApiRoute.deleteUuidNoRes("/project", Elevation.AUTH)
     }
 
+    object Benchmark {
+        val new = ApiRoute.post<BenchmarkRequest, BenchmarkResponse>("/benchmark", Elevation.AUTH)
+        val update = ApiRoute.patchUuidNoRes<PartialBenchmarkRequest>("/benchmark", Elevation.AUTH)
+        val delete = ApiRoute.deleteUuidNoRes("/benchmark", Elevation.AUTH)
+    }
+
     object Version {
         val new = ApiRoute.post<VersionRequest, VersionResponse>("/version", Elevation.AUTH)
         val update = ApiRoute.patchUuidNoRes<PartialVersionRequest>("/version", Elevation.AUTH)

server/build.gradle.kts

@@ -7,7 +7,10 @@ plugins {
 }
 
 group = "com.jaytux.phoebench"
-version = rootProject.version
+version = rootProject.version as PhoebenchVersion
+
+if((version as PhoebenchVersion) < (rootProject.version as PhoebenchVersion))
+    throw GradleException("Server version must be at least as high as protocol/common version")
 
 repositories {
     mavenCentral()

server/src/main/kotlin/com/jaytux/phoebench/server/Main.kt

@@ -2,6 +2,8 @@ package com.jaytux.phoebench.server
 
 import com.jaytux.phoebench.common.*
 import com.jaytux.phoebench.server.db.DB
+import com.jaytux.phoebench.server.db.Meta
+import com.jaytux.phoebench.server.db.Metas
 import com.jaytux.phoebench.server.db.User
 import com.jaytux.phoebench.server.handlers.*
 import com.jaytux.phoebench.server.handlers.ProjectHandler.accessibleProject
@@ -27,6 +29,10 @@ fun Application.module() {
     DB.db
     println("Entering module for PhoeBench Server version ${ServerVersion.VERSION}...")
 
+    if(Meta.single.revision < Metas.CURRENT_REVISION) {
+        DB.migrate(Meta.single.revision, Metas.CURRENT_REVISION)
+    }
+
     install(ContentNegotiation) {
         json()
     }
@@ -120,12 +126,17 @@ fun Application.module() {
             deleteAdmin(Routes.Auth.User.delete, AuthHandler::deleteUser)
 
             getAuth(Routes.home, ProjectHandler::home)
+            postAuth(Routes.migrate0To1, ProjectHandler::migrate01)
 
             postAuth(Routes.Project.new, ProjectHandler::createProject)
             getAuth(Routes.Project.get, ProjectHandler::getProject)
             patchAuth(Routes.Project.update, ProjectHandler::updateProject)
             deleteAuth(Routes.Project.delete, ProjectHandler::deleteProject)
 
+            postAuth(Routes.Benchmark.new, ProjectHandler::createBenchmark)
+            patchAuth(Routes.Benchmark.update, ProjectHandler::updateBenchmark)
+            deleteAuth(Routes.Benchmark.delete, ProjectHandler::deleteBenchmark)
+
             postAuth(Routes.Version.new, ProjectHandler::createVersion)
             patchAuth(Routes.Version.update, ProjectHandler::updateVersion)
             deleteAuth(Routes.Version.delete, ProjectHandler::deleteVersion)

server/src/main/kotlin/com/jaytux/phoebench/server/Util.kt

@@ -22,3 +22,5 @@ fun nowPlus(time: Int, unit: DateTimeUnit): Instant {
     val now = Clock.System.now()
     return now.plus(time, unit, systemTZ)
 }
+
+infix fun <T1, T2, T3> Pair<T1, T2>.app(t3: T3) = Triple(first, second, t3)

server/src/main/kotlin/com/jaytux/phoebench/server/db/DB.kt

@@ -1,9 +1,11 @@
 package com.jaytux.phoebench.server.db
 
 import com.jaytux.phoebench.server.DotEnv
+import org.jetbrains.exposed.v1.core.eq
 import org.jetbrains.exposed.v1.jdbc.Database
 import org.jetbrains.exposed.v1.jdbc.SchemaUtils
 import org.jetbrains.exposed.v1.jdbc.transactions.transaction
+import org.jetbrains.exposed.v1.jdbc.update
 import org.jetbrains.exposed.v1.migration.jdbc.MigrationUtils
 
 object DB {
@@ -17,7 +19,7 @@ object DB {
         transaction {
             SchemaUtils.create(Users, Invites, RefreshTokens, Projects, Versions, Entries)
 
-            val migration = MigrationUtils.statementsRequiredForDatabaseMigration(Users, Invites, RefreshTokens, Projects, Versions, Entries)
+            val migration = MigrationUtils.statementsRequiredForDatabaseMigration(Users, Invites, RefreshTokens, Projects, Versions, Entries, Metas, EntriesV2, Benchmarks)
             try {
                 migration.forEach {
                     exec(it)
@@ -29,4 +31,29 @@ object DB {
             }
         }
     }
+
+    fun migrate(from: Int, to: Int) = when(from) {
+        0 -> if(to == 1) migrate0To1() else null
+        else -> null
+    } ?: throw IllegalArgumentException("Migration $from -> $to is not defined")
+
+    private fun migrate0To1() {
+        transaction {
+            Users.update(where = { Users.isAdmin eq true }) { it[benchmarkLimit] = -1 }
+            Users.update(where = { Users.isAdmin eq false }) { it.update(benchmarkLimit, projectLimit) }
+        }
+
+        transaction {
+            User.all().forEach {
+                if(it.projects.count() == 0L) {
+                    it.projectVersion = Projects.CURRENT_VERSION
+                    return@forEach
+                }
+            }
+        }
+
+        transaction {
+            Meta.single.revision = 1
+        }
+    }
 }

server/src/main/kotlin/com/jaytux/phoebench/server/db/Entities.kt

@@ -1,10 +1,25 @@
 package com.jaytux.phoebench.server.db
 
+import org.jetbrains.exposed.v1.core.Transaction
 import org.jetbrains.exposed.v1.core.dao.id.EntityID
 import org.jetbrains.exposed.v1.dao.Entity
 import org.jetbrains.exposed.v1.dao.EntityClass
+import org.jetbrains.exposed.v1.jdbc.transactions.transaction
 import kotlin.uuid.Uuid
 
+class Meta(id: EntityID<Int>) : Entity<Int>(id) {
+    companion object : EntityClass<Int, Meta>(Metas) {
+        val single by lazy {
+            transaction {
+                val got = all().limit(1).toList()
+                got.firstOrNull() ?: new {}
+            }
+        }
+    }
+
+    var revision by Metas.revision
+}
+
 class User(id: EntityID<Uuid>) : Entity<Uuid>(id) {
     companion object : EntityClass<Uuid, User>(Users)
 
@@ -13,6 +28,8 @@ class User(id: EntityID<Uuid>) : Entity<Uuid>(id) {
     var isAdmin by Users.isAdmin
     var isOwner by Users.isOwner
     var projectLimit by Users.projectLimit
+    var benchmarkLimit by Users.benchmarkLimit
+    var projectVersion by Users.projectsVersion
 
     val projects by Project referrersOn Projects.ownerId
     val sessions by RefreshToken referrersOn RefreshTokens.userId
@@ -42,8 +59,18 @@ class Project(id: EntityID<Uuid>) : Entity<Uuid>(id) {
     var isPublic by Projects.isPublic
 
     var owner by User referencedOn Projects.ownerId
-    val labels by Version referrersOn Versions.projectId
-    val entries by Entry referrersOn Entries.projectId
+    val versions by Version referrersOn Versions.projectId
+    val benchmarks by Benchmark referrersOn Benchmarks.projectId
+}
+
+class Benchmark(id: EntityID<Uuid>) : Entity<Uuid>(id) {
+    companion object : EntityClass<Uuid, Benchmark>(Benchmarks)
+
+    var projectId by Benchmarks.projectId
+    var name by Benchmarks.name
+
+    val project by Project referencedOn Benchmarks.projectId
+    val entries by EntryV2 referrersOn EntriesV2.benchmarkId
 }
 
 class Version(id: EntityID<Uuid>) : Entity<Uuid>(id) {
@@ -72,3 +99,19 @@ class Entry(id: EntityID<Uuid>) : Entity<Uuid>(id) {
     var project by Project referencedOn Entries.projectId
     var version by Version referencedOn Entries.versionId
 }
+
+class EntryV2(id: EntityID<Uuid>) : Entity<Uuid>(id) {
+    companion object : EntityClass<Uuid, EntryV2>(EntriesV2)
+
+    var benchmarkId by EntriesV2.benchmarkId
+    var versionId by EntriesV2.versionId
+    var timestamp by EntriesV2.timestamp
+    var warmups by EntriesV2.warmups
+    var measurements by EntriesV2.measurements
+    var unit by EntriesV2.unit
+    var input by EntriesV2.input
+    var hardware by EntriesV2.hardware
+
+    var benchmark by Benchmark referencedOn EntriesV2.benchmarkId
+    var version by Version referencedOn EntriesV2.versionId
+}

server/src/main/kotlin/com/jaytux/phoebench/server/db/Tables.kt

@@ -2,16 +2,26 @@ package com.jaytux.phoebench.server.db
 
 import com.jaytux.phoebench.common.TimeUnit
 import org.jetbrains.exposed.v1.core.ReferenceOption
+import org.jetbrains.exposed.v1.core.dao.id.IntIdTable
 import org.jetbrains.exposed.v1.core.dao.id.UuidTable
 import org.jetbrains.exposed.v1.datetime.timestamp
 import kotlin.time.Clock
 
+object Metas : IntIdTable() {
+    const val CURRENT_REVISION = 1
+
+    val revision = integer("revision").default(0)
+}
+
 object Users : UuidTable() {
     val username = varchar("username", 255).uniqueIndex()
     val password = varchar("password", 255)
     val isAdmin = bool("is_admin").default(false)
     val isOwner = bool("is_owner").default(false)
     val projectLimit = integer("project_limit").default(1)
+    val benchmarkLimit = integer("benchmark_limit").default(1)
+
+    val projectsVersion = integer("project_version").default(0)
 }
 
 object Invites : UuidTable() {
@@ -25,6 +35,8 @@ object RefreshTokens : UuidTable() {
 }
 
 object Projects : UuidTable() {
+    const val CURRENT_VERSION = 1
+
     val ownerId = reference("owner_id", Users, onDelete = ReferenceOption.CASCADE, onUpdate = ReferenceOption.CASCADE)
     val name = varchar("name", 255)
     val isPublic = bool("is_public").default(false)
@@ -34,6 +46,15 @@ object Projects : UuidTable() {
     }
 }
 
+object Benchmarks : UuidTable() {
+    val projectId = reference("project_id", Projects, onDelete = ReferenceOption.CASCADE, onUpdate = ReferenceOption.CASCADE)
+    val name = varchar("name", 255)
+
+    init {
+        uniqueIndex(projectId, name)
+    }
+}
+
 object Versions : UuidTable() {
     val label = varchar("label", 255)
     val color = varchar("color", 7)
@@ -51,3 +72,14 @@ object Entries : UuidTable() {
     val input = varchar("input", 255)
     val hardware = varchar("hardware", 255)
 }
+
+object EntriesV2 : UuidTable() {
+    val benchmarkId = reference("benchmark_id", Benchmarks, onDelete = ReferenceOption.CASCADE, onUpdate = ReferenceOption.CASCADE)
+    val versionId = reference("version_id", Versions, onDelete = ReferenceOption.CASCADE, onUpdate = ReferenceOption.CASCADE)
+    val timestamp = timestamp("timestamp").default(Clock.System.now())
+    val warmups = list<Float>("warmups")
+    val measurements = list<Float>("measurements")
+    val unit = enumeration<TimeUnit>("unit")
+    val input = varchar("input", 255)
+    val hardware = varchar("hardware", 255)
+}

server/src/main/kotlin/com/jaytux/phoebench/server/handlers/ProjectHandler.kt

@@ -1,22 +1,31 @@
 package com.jaytux.phoebench.server.handlers
 
+import com.jaytux.phoebench.common.BenchmarkRequest
+import com.jaytux.phoebench.common.BenchmarkResponse
+import com.jaytux.phoebench.common.BenchmarkSummary
 import com.jaytux.phoebench.common.EmptyRequest
 import com.jaytux.phoebench.common.EmptyResponse
 import com.jaytux.phoebench.common.EntryRequest
 import com.jaytux.phoebench.common.EntryResponse
 import com.jaytux.phoebench.common.HomeEvent
 import com.jaytux.phoebench.common.HomeResponse
+import com.jaytux.phoebench.common.Migrate0To1Request
 import com.jaytux.phoebench.common.VersionRequest
 import com.jaytux.phoebench.common.VersionResponse
 import com.jaytux.phoebench.common.NamedID
+import com.jaytux.phoebench.common.PartialBenchmarkRequest
 import com.jaytux.phoebench.common.PartialProjectRequest
 import com.jaytux.phoebench.common.PartialVersionRequest
 import com.jaytux.phoebench.common.ProjectEvent
 import com.jaytux.phoebench.common.ProjectRequest
 import com.jaytux.phoebench.common.ProjectResponse
 import com.jaytux.phoebench.server.Buses
+import com.jaytux.phoebench.server.app
+import com.jaytux.phoebench.server.db.Benchmark
+import com.jaytux.phoebench.server.db.Benchmarks
 import com.jaytux.phoebench.server.db.Entries
 import com.jaytux.phoebench.server.db.Entry
+import com.jaytux.phoebench.server.db.EntryV2
 import com.jaytux.phoebench.server.db.Version
 import com.jaytux.phoebench.server.db.Versions
 import com.jaytux.phoebench.server.db.Project
@@ -27,7 +36,12 @@ import io.ktor.http.HttpStatusCode
 import kotlinx.coroutines.launch
 import org.jetbrains.exposed.v1.core.SortOrder
 import org.jetbrains.exposed.v1.core.Transaction
+import org.jetbrains.exposed.v1.core.and
+import org.jetbrains.exposed.v1.core.dao.id.EntityID
 import org.jetbrains.exposed.v1.core.eq
+import org.jetbrains.exposed.v1.core.inList
+import org.jetbrains.exposed.v1.core.notInList
+import org.jetbrains.exposed.v1.jdbc.deleteWhere
 import org.jetbrains.exposed.v1.jdbc.transactions.transaction
 import kotlin.uuid.Uuid
 
@@ -40,23 +54,44 @@ object ProjectHandler {
         return when {
             isEditableBy(user) -> this
             isPublic && !forEditing -> this
-            else -> throw RouteError("Invalid project ID.", HttpStatusCode.NotFound)
+            else -> throw RouteError("Invalid ID.", HttpStatusCode.NotFound)
         }
     }
 
+    context(trns: Transaction)
+    fun Benchmark.isAccessible(user: User, forEditing: Boolean): Pair<Project, Benchmark> {
+        return project.isAccessible(user, forEditing) to this
+    }
+
     fun Transaction.accessibleProject(user: User, id: Uuid, forEditing: Boolean): Project {
         val project = Project.findById(id) ?: throw RouteError("Invalid project ID.", HttpStatusCode.NotFound)
         return project.isAccessible(user, forEditing)
     }
 
+    fun Transaction.accessibleBenchmark(user: User, id: Uuid, forEditing: Boolean): Pair<Project, Benchmark> {
+        val bench = Benchmark.findById(id) ?: throw RouteError("Invalid benchmark ID.", HttpStatusCode.NotFound)
+        return bench.isAccessible(user, forEditing)
+    }
+
+    fun Transaction.checkMigration(user: User) {
+        if(user.projectVersion < Projects.CURRENT_VERSION)
+            throw RouteError("You need to migrate your projects first.", HttpStatusCode.Conflict)
+    }
+
     context(trns: Transaction)
     private fun Project.toResponse(user: User) = ProjectResponse(
         id.value, name, NamedID(owner.username, owner.id.value), isPublic, isEditableBy(user),
-        labels.orderBy(Versions.label to SortOrder.ASC).map { VersionResponse(it.id.value, it.label, it.color, it.meta) },
-        entries.orderBy(Entries.timestamp to SortOrder.ASC).map { EntryResponse(it.id.value, it.version.id.value, it.timestamp, it.warmups, it.measurements, it.unit, it.input, it.hardware) })
+        benchmarks.orderBy(Benchmarks.name to SortOrder.ASC).map { b -> BenchmarkResponse(
+            b.id.value, b.name, b.entries.map { e ->
+                EntryResponse(e.id.value, e.benchmarkId.value, e.versionId.value, e.timestamp, e.warmups, e.measurements, e.unit, e.input, e.hardware)
+            }
+        ) },
+        versions.orderBy(Versions.label to SortOrder.ASC).map { VersionResponse(it.id.value, it.label, it.color, it.meta) }
+    )
 
     fun home(user: User, req: EmptyRequest) = transaction {
-        val own = user.projects.orderBy(Projects.name to SortOrder.ASC).map {
+        val own = user.projects.orderBy(Projects.name to SortOrder.ASC).mapNotNull {
+            if(it.name.startsWith("<migrate")) return@mapNotNull null
             HomeResponse.ProjectSummary(it.id.value, it.name, it.isPublic, NamedID(it.owner.username, it.ownerId.value))
         }
 
@@ -64,10 +99,23 @@ object ProjectHandler {
             HomeResponse.ProjectSummary(it.id.value, it.name, it.isPublic, NamedID(it.owner.username, it.ownerId.value))
         }
 
-        success(HomeResponse(user.username, user.isAdmin, user.projectLimit, own, publics))
+        val migrations = mutableListOf<HomeResponse.NeededMigration>()
+        var version = user.projectVersion
+        while(version < Projects.CURRENT_VERSION) {
+            migrations += when(version) {
+                0 -> HomeResponse.NeededMigration.Migrate0To1(user.projects.map { p ->
+                    HomeResponse.NeededMigration.Migrate0To1.OldProject(p.id.value, p.name, p.versions.map { VersionResponse(it.id.value, it.label, it.color, it.meta) })
+                })
+                else -> throw IllegalArgumentException("No migration starting from $version possible.")
+            }
+            ++version
+        }
+
+        success(HomeResponse(user.username, user.isAdmin, user.projectLimit, own, publics, migrations))
     }
 
     suspend fun createProject(user: User, req: ProjectRequest) = transaction {
+        checkMigration(user)
         if(user.projectLimit != -1 && (user.projects.count() >= user.projectLimit))
             throw RouteError("You have reached your project limit.", HttpStatusCode.Conflict)
 
@@ -88,11 +136,13 @@ object ProjectHandler {
     }
 
     fun getProject(user: User, req: Uuid) = transaction {
+        checkMigration(user)
         val proj = accessibleProject(user, req, false)
         success(proj.toResponse(user))
     }
 
     fun updateProject(user: User, req: Pair<Uuid, PartialProjectRequest>) = transaction {
+        checkMigration(user)
         val proj = accessibleProject(user, req.first, true)
         val changes = req.second
         changes.name?.let { proj.name = it }
@@ -113,6 +163,7 @@ object ProjectHandler {
     }
 
     fun deleteProject(user: User, req: Uuid) = transaction {
+        checkMigration(user)
         val proj = accessibleProject(user, req, true)
         proj.delete()
         ServerScope.launch {
@@ -124,8 +175,57 @@ object ProjectHandler {
         success(EmptyResponse())
     }
 
-    fun createVersion(user: User, req: VersionRequest) = transaction {
+    fun createBenchmark(user: User, req: BenchmarkRequest) = transaction {
+        checkMigration(user)
         val proj = accessibleProject(user, req.projectId, true)
+        val bench = Benchmark.new {
+            name = req.name
+            projectId = proj.id
+        }
+
+        val res = BenchmarkResponse(bench.id.value, bench.name, bench.entries.map {
+            EntryResponse(it.id.value, it.benchmarkId.value, it.versionId.value, it.timestamp, it.warmups, it.measurements, it.unit, it.input, it.hardware)
+        })
+
+        ServerScope.launch {
+            val projectBus = Buses.projectBus(proj.id.value)
+            if(proj.isPublic) projectBus.sendAll(ProjectEvent.NewBenchmark(res))
+            else projectBus.send(user.id.value, ProjectEvent.NewBenchmark(res))
+        }
+
+        success(res)
+    }
+
+    fun updateBenchmark(user: User, req: Pair<Uuid, PartialBenchmarkRequest>) = transaction {
+        checkMigration(user)
+        val (proj, bench) = accessibleBenchmark(user, req.first, true)
+        val changes = req.second
+        changes.name?.let { proj.name = it }
+
+        ServerScope.launch {
+            Buses.projectBus(proj.id.value).sendAll(ProjectEvent.BenchmarkChanged(
+                BenchmarkSummary(bench.id.value, bench.name)
+            ))
+        }
+
+        success(EmptyResponse())
+    }
+
+    fun deleteBenchmark(user: User, req: Uuid) = transaction {
+        checkMigration(user)
+        val (proj, bench) = accessibleBenchmark(user, req, true)
+        bench.delete()
+
+        ServerScope.launch {
+            Buses.projectBus(proj.id.value).sendAll(ProjectEvent.BenchmarkDeleted(req))
+        }
+
+        success(EmptyResponse())
+    }
+
+    fun createVersion(user: User, req: VersionRequest) = transaction {
+        checkMigration(user)
+        val proj = accessibleProject(user, req.benchmarkId, true)
         if(req.color.length != 7) throw RouteError("Expected Hex-RGB color (7 characters).", HttpStatusCode.BadRequest)
         val ver = Version.new {
             label = req.name
@@ -136,13 +236,14 @@ object ProjectHandler {
 
         val res = VersionResponse(ver.id.value, ver.label, ver.color, ver.meta)
         ServerScope.launch {
-            Buses.projectBus(req.projectId).sendAll(ProjectEvent.NewVersion(res))
+            Buses.projectBus(req.benchmarkId).sendAll(ProjectEvent.NewVersion(res))
         }
 
         success(res)
     }
 
     fun updateVersion(user: User, req: Pair<Uuid, PartialVersionRequest>) = transaction {
+        checkMigration(user)
         val ver = Version.findById(req.first) ?: throw RouteError("Invalid version ID.", HttpStatusCode.NotFound)
         ver.project.isAccessible(user, true)
         val changes = req.second
@@ -163,6 +264,7 @@ object ProjectHandler {
     }
 
     fun deleteVersion(user: User, req: Uuid) = transaction {
+        checkMigration(user)
         val ver = Version.findById(req) ?: throw RouteError("Invalid version ID.", HttpStatusCode.NotFound)
         ver.project.isAccessible(user, true)
         ver.delete()
@@ -175,14 +277,15 @@ object ProjectHandler {
     }
 
     fun createEntry(user: User, req: EntryRequest) = transaction {
-        val proj = accessibleProject(user, req.projectId, true)
-        val entry = Entry.new {
+        checkMigration(user)
+        val (proj, bench) = accessibleBenchmark(user, req.benchmarkId, true)
+        val entry = EntryV2.new {
             version = when(val l = Version.findById(req.version)) {
                 null -> throw RouteError("Invalid version ID.", HttpStatusCode.NotFound)
                 is Version if l.projectId.value != proj.id.value -> throw RouteError("Version is attached to a different project.", HttpStatusCode.Conflict)
                 else -> l
             }
-            project = proj
+            benchmarkId = bench.id
             measurements = req.measurements
             timestamp = req.timestamp
             warmups = req.warmups
@@ -191,7 +294,8 @@ object ProjectHandler {
             hardware = req.hardware
         }
 
-        val response = EntryResponse(entry.id.value, entry.version.id.value, entry.timestamp, entry.warmups, entry.measurements, entry.unit, entry.input, entry.hardware)
+        val response = EntryResponse(entry.id.value, entry.benchmarkId.value,
+            entry.version.id.value, entry.timestamp, entry.warmups, entry.measurements, entry.unit, entry.input, entry.hardware)
         ServerScope.launch {
             Buses.projectBus(proj.id.value).sendAll(ProjectEvent.NewEntry(response))
         }
@@ -199,12 +303,82 @@ object ProjectHandler {
     }
 
     fun deleteEntry(user: User, req: Uuid) = transaction {
-        val entry = Entry.findById(req) ?: throw RouteError("Invalid entry ID.", HttpStatusCode.NotFound)
-        entry.project.isAccessible(user, true)
+        checkMigration(user)
+        val entry = EntryV2.findById(req) ?: throw RouteError("Invalid entry ID.", HttpStatusCode.NotFound)
+        val (proj, bench) = entry.benchmark.isAccessible(user, true)
         entry.delete()
         ServerScope.launch {
-            Buses.projectBus(entry.project.id.value).sendAll(ProjectEvent.EntryDeleted(req))
+            Buses.projectBus(proj.id.value).sendAll(ProjectEvent.EntryDeleted(req, bench.id.value))
         }
         success(EmptyResponse())
     }
+
+    fun migrate01(user: User, req: Migrate0To1Request): Pair<HttpStatusCode, HomeResponse> {
+        val givenProjectIds = req.conversions.flatMap { it.oldProjectsAsBenchmarks }.toSet()
+        val totalProjectCount = req.conversions.sumOf { it.oldProjectsAsBenchmarks.size }
+        if(totalProjectCount != givenProjectIds.size)
+            throw RouteError("Each (legacy) project should only be bound to a single (migrated) project", HttpStatusCode.BadRequest)
+
+        val userProjects = transaction { user.projects.toList() }.map { it.id.value }.toSet()
+        if(givenProjectIds.any { it !in userProjects })
+            throw RouteError("Only a user's own projects should be migrated.", HttpStatusCode.Conflict)
+
+        transaction {
+            user.projects.forEach { it.name = "${it.name}#legacy" }
+        }
+
+        transaction {
+            req.conversions.forEach { (newName, isPublic, olds) ->
+                val proj = Project.new {
+                    ownerId = user.id
+                    name = newName
+                    this.isPublic = isPublic
+                }
+
+                val versionMap = mutableMapOf<Uuid, EntityID<Uuid>>()
+                val duplicateMap = mutableMapOf<String, EntityID<Uuid>>()
+                Version.find { Versions.projectId inList olds }.forEach { oldVersion ->
+                    val targetId = duplicateMap.getOrPut(oldVersion.label) {
+                        oldVersion.projectId = proj.id
+                        oldVersion.id
+                    }
+                    versionMap[oldVersion.id.value] = targetId
+                }
+
+                olds.forEach { oldId ->
+                    val oldProj = accessibleProject(user, oldId, true)
+                    val benchmark = Benchmark.new {
+                        projectId = proj.id
+                        name = oldProj.name.removeSuffix("#legacy")
+                    }
+
+                    Entry.find { Entries.projectId eq oldId }.forEach {
+                        EntryV2.new {
+                            benchmarkId = benchmark.id
+                            versionId = versionMap[it.versionId.value]!!
+                            timestamp = it.timestamp
+                            warmups = it.warmups
+                            measurements = it.measurements
+                            unit = it.unit
+                            input = it.input
+                            hardware = it.hardware
+                        }
+                        it.delete()
+                    }
+                }
+
+                Versions.deleteWhere {
+                    (Versions.projectId inList olds) and (Versions.id notInList versionMap.values.toList())
+                }
+
+                Projects.deleteWhere {
+                    Projects.id inList olds
+                }
+            }
+
+            user.projectVersion = 1
+        }
+
+        return home(user, EmptyRequest())
+    }
 }